Roll IDL to Dartium37 (r181268)

modules/webaudio/AnalyserNode.idl

Index: modules/webaudio/AnalyserNode.idl
diff --git a/modules/webaudio/AnalyserNode.idl b/modules/webaudio/AnalyserNode.idl
index f3add662997d008ed25cac7e8e65b417a5771260..4de5f299edc024288576909ab357dffe1ef615ec 100644
--- a/modules/webaudio/AnalyserNode.idl
+++ b/modules/webaudio/AnalyserNode.idl
@@ -29,11 +29,11 @@
     readonly attribute unsigned long frequencyBinCount;
 
     // minDecibels / maxDecibels represent the range to scale the FFT analysis data for conversion to unsigned byte values.
-    [RaisesException=Setter] attribute float minDecibels;
-    [RaisesException=Setter] attribute float maxDecibels;
+    [RaisesException=Setter] attribute double minDecibels;
+    [RaisesException=Setter] attribute double maxDecibels;
 
     // A value from 0.0 -> 1.0 where 0.0 represents no time averaging with the last analysis frame.
-    [RaisesException=Setter] attribute float smoothingTimeConstant;
+    [RaisesException=Setter] attribute double smoothingTimeConstant;
 
     // Copies the current frequency data into the passed array.
     // If the array has fewer elements than the frequencyBinCount, the excess elements will be dropped.
@@ -41,5 +41,6 @@
     void getByteFrequencyData(Uint8Array array);
 
     // Real-time waveform data
+    void getFloatTimeDomainData(Float32Array array);
     void getByteTimeDomainData(Uint8Array array);
 };